A5064095396- Advanced Cellulose Research Studies
- Electrospun Nanofibers in Biomedical Applications
- biodegradable polymer synthesis and properties
- Nanocomposite Films for Food Packaging
- Natural Fiber Reinforced Composites
- Lignin and Wood Chemistry
- Advanced Sensor and Energy Harvesting Materials
- Additive Manufacturing and 3D Printing Technologies
- Polymer composites and self-healing
- TiO2 Photocatalysis and Solar Cells
- Wound Healing and Treatments
- Polysaccharides and Plant Cell Walls
- Hydrogels: synthesis, properties, applications
- Surgical Sutures and Adhesives
- Nanomaterials for catalytic reactions
- Advanced Battery Materials and Technologies
- Hemostasis and retained surgical items
- Electromagnetic wave absorption materials
- Spectroscopy and Chemometric Analyses
- Advanced battery technologies research
- Microplastics and Plastic Pollution
- Advanced Photocatalysis Techniques
- Advanced Materials and Mechanics
- Biofuel production and bioconversion
- Polymer Foaming and Composites
Institute of Forest Science
2018-2024
Korea Forest Service
2016-2024
Kyungpook National University
2023
Louisiana State University
2021
Government of the Republic of Korea
2018
University of Seoul
2010-2016
Nanomat Li–S batteries based on all-fibrous cathode/separator assemblies and reinforced Li metal anodes are presented to enable ultrahigh-energy-density flexibility.
Incorporation of curcumin (Cur) into a hydrogel system is an interesting approach to treat full-thickness skin wounds because Cur can potentiate healing by affecting different stages the wound healing. Due its hydrophobicity, solubilization great challenge. Thus, pluronic F-127, gelation capacity polyvinyl alcohol (PVA) and porosity enhancement TEMPO-oxidized cellulose nanofiber (TOCN) inaugurate biocompatible biodegradable for delivery. In this study, incorporated physically crosslinked...
Abstract Chemical modifications of wood fibers (Lignocel® C120) were performed for biocomposite applications, and chemically modified analyzed by FTIR spectroscopy. NaOH treatment showed band shifts from Cell‐I to Cell‐II in spectra 2902 cm −1 , 1425 1163 983 897 2894 1420 1161 993 895 the change peak height at 1111 1059 assigned structure. Silane changes 1200 as SiOC band, 765 SiC symmetric stretching bond, 700 SiOSi stretching, 465 asymmetric bending. Benzoyl resulted an increase...
A solid-state zinc ion battery based on a cellulose nanofiber–polyacrylamide hydrogel electrolyte and Mg<sub>0.23</sub>V<sub>2</sub>O<sub>5</sub>·1.0H<sub>2</sub>O cathode.
Exfoliated MXene nanosheets are integrated with cellulose nanofibers (CNFs) to form composite aerogels high electric conductivity. The combination of CNFs and forms a unique "accordion-like" hierarchical architecture MXene-CNF pillared layers through ice-crystal templating. Benefiting from the special "layer-strut" structure, MXene/CNF have low density (50 mg/cm3), excellent compressibility recoverability, as well superior fatigue resistance (up 1000 cycles). When being used piezoresistive...
Although cellulose nanocrystals (CNCs) have been highlighted as a potential nano-reinforcement in polymer composites, the hydrophilic surface nature of CNCs limits their usage composite area due to poor dispersibility nonpolar solvent systems.
The depletion of onshore oil reserves along with a rapid increase in the global energy demand has driven industry to explore and produce from deepwater fields. However, because high salinity subsea formation, salt contamination is becoming one most critical challenges bentonite water-based drilling fluids (BT-WDFs), causing undesirable changes density, rheology, filtration performance fluids. Herein, we reveal mechanisms negative influence cations on BT-WDFs demonstrate function...
A free-standing, antibacterial hydrogel was fabricated using silver-nanoparticle-immobilized cellulose nanofibers (CNFs) and alginate. Surface hydroxyl groups of CNFs were oxidized to carboxylate (2,2,6,6-tetramethylpiperidin-1-yl)oxidanyl (TCNF), followed by the treatment with silver nitrate solution for surface adsorption ions. In situ reduction ions produce nanoparticles performed silver-adsorbed CNFs. Electron microscopy, X-ray diffraction, spectroscopic analysis revealed that higher...
A cellulose nanofiber (CNF)–polyacrylamide (PAM) hydrogel electrolyte is developed. It has the potential to expand application of ZIBs broad fields such as wind turbines in desolate areas, cold polar regions, and aerospace.
Conductive hydrogels have gained a great deal of interest in the flexible electronics industry because their remarkable inherent properties. However, significant challenge remains for balancing hydrogel's conductivity, self-healing, and strength Herein, double network ionic were fabricated by concurrently introducing borax into dicarboxylic cellulose nanofiber (DCNFs) polyacrylamide (PAM) hydrogels. The incorporation provided superabsorbent feature to PAM/DCNF (without borax) with...
Although chemical modifications of CNCs have been successfully adopted to enhance their dispersibility in apolar matrices and solvents, the problem dispersion level mCNCs above a certain loading nanoparticles remains an issue.
The approaching era of sustainable development and rapid increase in global energy demand necessitates the high-performance drilling fluids with low toxicity, sustainability, in-situ rheology controllability for complicated formation excavation. Herein, smart water-based (WDFs) thermocontrollable rheological properties are developed using bentonite (BT) dual-functionalized cellulose nanocrystals (fCNCs). fCNCs synthesized by surface grafting poly(2-acrylamido-2-methyl-1-propanesulfonic acid)...
Hydrogels have been widely studied and used in biomedical pharmaceutical applications. However, their fragile character poor mechanical properties limit feasibility for Incorporating nature-derived nanoparticles can enhance the structural integrity of hydrogels by creating a stable network, resulting with robust properties. This study prepared 5 wt % poly(vinyl alcohol) (PVA)-based reinforced different amounts cellulose nanocrystals (CNCs), ranging from 0 to 20 phr relative PVA. The were...
Hybrid filler-reinforced composites are considered as high performance materials, but limited number of studies on hybridizations wood fibers and mineral fillers were reported. Three types inorganic (talc, kaolin, zinc-borate), which have been widely adopted in various applications, used for manufacturing wood–plastic (WPCs). The aim this study is to understand the effects filler shape, size, surface nature, loading amount physical properties WPCs. Kaolin showed best mechanical strength...